Advocate Ultra Chew Sizes for Dogs: 2 kg to 45 kg Guide

How to Pick the Right Advocate Ultra Chew Weight Band

Sizing comes down to your dog's current weight, not their breed or what the box looked like last year. Australian dogs change weight constantly — a kelpie at peak fitness sits at the bottom of a band, the same dog after a quiet winter sits at the top. Weigh your dog within a fortnight of buying a new pack and pick the band their actual weight sits inside. If they're at the upper edge of one band, go with that band — never round up to the next size, because higher doses are calibrated for heavier dogs and don't add coverage for lighter ones.

If your household has dogs in different weight bands, buy a pack for each dog rather than splitting larger chews. Active ingredients aren't evenly distributed inside a chew, so a half-chew doesn't deliver half a dose — it delivers an unpredictable one. The 3-pack and 6-pack options are usually cheaper per dose than singles, so even multi-dog households almost always come out ahead with a 6-pack per dog rather than juggling singles.

Advocate Ultra Chew vs the Old Spot-On Weight Bands

Owners switching across from the original Advocate spot-on will notice the chew uses different bands. The spot-on ran on 4–10 kg, 10–25 kg and over-25-kg sizes; the chew runs on five bands from 2 kg to 45 kg, including a true puppy-and-toy-breed Extra Small at the bottom and a separate Extra Large for dogs over 22 kg. Most spot-on Medium (4–10 kg) dogs map to the chew's Small or Medium, and most spot-on Large (10–25 kg) dogs map to the chew's Large — but check your dog's current weight rather than assuming.

Pack Sizes and Cost-Per-Dose

Most variants are sold in three pack sizes: a Single (one month's protection), a 3-pack (one quarter), and a 6-pack (six months). The Extra Small variant is currently sold only as a Single. Per-dose pricing falls as you go up — a 6-pack per dose is almost always cheaper than buying six singles — so unless you're switching brands and want to test palatability first, a 6-pack is the default to buy.

Switching Sizes as a Puppy Grows

Puppies move through weight bands quickly. A 3-kg puppy starting on the Extra Small (2–2.8 kg) will likely outgrow that band within weeks — most owners buy a Single Extra Small to bridge until the puppy hits 2.8 kg, then switch to a 3-pack of the next band up. Reweigh every dose-cycle until growth slows around 8–12 months, then settle on the adult band.